/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2023-2023. All rights reserved.
 * Description: 获取动态库中profiling接口函数的适配接口
 * Author: zhangjian
 * Create: 2023-08-30
 */

#include "dlprof_func.h"
#include "log.h"

namespace hccl {
DlProfFunc &DlProfFunc::GetInstance()
{
    static DlProfFunc hcclDlProfFunction;
    return hcclDlProfFunction;
}

DlProfFunc::DlProfFunc()
{
    DlProfFunctionStubInit();
}

DlProfFunc::~DlProfFunc()
{
    if (handle_ != nullptr) {
        (void)dlclose(handle_);
        handle_ = nullptr;
    }
}

uint64_t HcclMsprofSysCycleTimeStub()
{
    HCCL_WARNING("Entry HcclMsprofSysCycleTimeStub");
    return 0;
}

void DlProfFunc::DlProfFunctionStubInit()
{
    dlMsprofSysCycleTime = (uint64_t(*)(void))HcclMsprofSysCycleTimeStub;
}

HcclResult DlProfFunc::DlProfFunctionInterInit()
{
    dlMsprofSysCycleTime = (uint64_t(*)(void))dlsym(handle_,
        "MsprofSysCycleTime");
    CHK_SMART_PTR_NULL(dlMsprofSysCycleTime);

    return HCCL_SUCCESS;
}

HcclResult DlProfFunc::DlProfFunctionInit()
{
    std::lock_guard<std::mutex> lock(handleMutex_);
    if (handle_ == nullptr) {
        handle_ = dlopen("libprofapi.so", RTLD_NOW);
    }
    if (handle_ != nullptr) {
        CHK_RET(DlProfFunctionInterInit());
    }
    return HCCL_SUCCESS;
}
}
